<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>不用JS纯CSS也能实现二级导航下拉菜单效果！</title>
    <style>
        body,
        ul {
            margin: 0;
            padding: 0px;
        }

        .mune {
            width: 100%;
            height: 60px;
            background-color: #fd6a88;
        }

        .mune .mmenu-con {
            width: 1000px;
            height: 60px;
            background-color: aqua;
            margin: 0px auto 0px;
        }

        ul {
            list-style: none;
            /* border: 2px solid beige; */
        }

        .mune .mmenu-con li {
            /* width: 100px; */
            height: 60px;
            /* border: 1px solid darkblue; */
            float: left;
            /* text-align: center; */

        }

        .mune .mmenu-con li a {
            display: block;
            height: 60px;
            padding: 0px 40px;
            line-height: 60px;
        }

        .clearfix::after {
            content: "";
            display: block;
            clear: both;
        }

        a {
            text-decoration: none;
            color: black;
        }
    </style>
</head>

<body>
    <div class="mune">
        <div class="mmenu-con">
            <ul class="clearfix">
                <li><a href=""> 111111</a></li>
                <li><a href=""> 111111</a></li>
                <li><a href=""> 111111</a></li>
                <li><a href=""> 111111</a></li>
                <li><a href=""> 111111</a></li>
                <li><a href=""> 111111</a></li>
            </ul>
        </div>
    </div>

</body>

</html>